Messages in this thread | | | Date | Sat, 2 May 2015 14:43:34 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH] x86: Optimize variable_test_bit() |
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On Fri, May 01, 2015 at 03:02:24PM -0400, Vladimir Makarov wrote: > Currently LRA is used by x86/x86-64, ARM, AARCH64, s390, and MIPS. > PPC, SH, and ARC are moving to LRA. All other targets are still > reload based. > > So I could implement the output reloads in LRA, probably for the > next GCC release. How to enable and mostly use it for multi-target > code like the kernel is another question.
Pretty much all inline asm is in per arch code; so one arch having different asm features than another should not be a problem at all.
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